- sudo-discuss - sudoroom.org

Re: [sudo-discuss] TIL: Hacking Sexual Health

by Vicky Knox

WOW. OK, where to start? First off: https://sudoroom.org/wiki/page/Today_I_Learned#May_4 Table of Contents @Masturbation Lib and Teledildonics @Men @Gonorrhea @Sudo Room Donations @Community Infrastructure @Masturbation Liberation and Teledildonics: Anon195's ideas are amaaaazing! I've been fascinated by teledildonics ever since I heard of the existence of Ted Nelson. <http://en.wikipedia.org/wiki/Teledildonics> < http://en.wikipedia.org/wiki/Ted_Nelson> The closest thing to that that I've run into via the hackerspaces has been the Dongiverse, which is cool except that I wouldn't want a sharp, porous plastic dong up any of my orifices. <http://dongiverse.com/> Maybe a class field trip to Arse Elektronica 2013? (AE is an annual SF sex and technology event/conference/thingy.) Or how about getting in touch with their organizers to see if they'd like to collaborate on a workshop? Ooh ideas! <http://www.monochrom.at/arse-elektronika/> Masturbation liberation: Fuck yeah! I think this should be its own TIL and I'm ready to make it happen. Wanna chose a date, Anon195? Or would you like to wait on that until we talk more and/or contact our contacts (such as AE)? **So who's got the teledildonics connection? @Men: Would there be any interest in formulating a men's meetup to talk about, you know, stuff? @Gonorrhea: I think the greatest workshops I've ever been to have been variety hours. It's absolutely lovely and fascinating to have educational interludes, kind of like exploring Wikipedia's intertwingularity (see Ted Nelson article). May 4th is reserved! Does anyone else have an educational interlude they'd like to add to Hacking Menstruation? @Sudo Room Donations: These events are the perfect opportunity for us to pounce upon unsuspecting donors. Please reach far and wide into your networks to advertise this. I'll send a follow-up reminder! @Community infrastructure: A random hack of kindness will soon be making its way toward Sudo Room. 2013/4/4 Marina Kukso <marina.kukso(a)gmail.com> > excellent. > > i think this also presents an excellent opportunity for discussing what > kind of (light) infrastructure would facilitate reproductive and sexual > health at the space - very basic stuff, tampons etc., but also community > infrastructure - are we living up to our goal of being inclusive by > providing options in both the physical and community dimensions of the > space that allow everyone to feel at home. everyone should be a part of > this discussion and i would love to speak more with women, queer folks, > people of all stripes about it. > > - marina > > > On Thu, Apr 4, 2013 at 8:25 AM, Craig Rouskey <craigrouskey(a)gmail.com>wrote: > >> I would be down to talk about Gonorrhea and plug our program to eradicate >> the antibiotic resistant strains! May 4 th >> — >> Sent from Mailbox <https://bit.ly/SZvoJe> for iPhone >> >> >> On Thu, Apr 4, 2013 at 3:46 AM, Anon195714 <anon195714(a)sbcglobal.net>wrote: >> >>> >>> >>> Yo's- >>> >>> Re. "What does it mean to hack sexual health...?" >>> >>> Here's one example. For years I've had a slogan I tell people >>> (typically guys) whose sex drive is on overdrive to the point where it >>> warps their attitude toward others (typically gals): >>> >>> "Masturbate and keep your objectivity." >>> >>> 70% of guys "admit" that they play with themselves, and the other 30% >>> are lying. Yet the hypocrisy around this subject is just astounding, and >>> the result is that physical needs become conflated with social attitudes >>> and generate oppression of self and oppression of others. >>> >>> Envision a culture where relationships are based on partners feeding >>> each other (as in, holding the forks and spoons full of food up to each >>> others' mouths during a meal) instead of on people having sex with each >>> other. People would run around frantically seeking partners because >>> otherwise they'd either have to feed themselves (oh!, the embarrassment!) >>> or go hungry and die. >>> >>> That's where our culture is about sex. It's crazy. >>> >>> So I'd suggest "masturbation liberation" as a sexuality hacking topic. >>> >>> It even has major potential for cybernetic devices and interfaces and >>> online communication enhancements. >>> >>> "Did you try building the new Orgasmatron?" >>> >>> "Yeah. The interface works pretty well, but there's a bug in the code, >>> so I patched it. Wanna' download my version, see what you think?" >>> >>> Later.... "Hey, your version's a lot better than the original. Now I >>> was thinking, the interface could be improved. Here, I'll make one for you >>> on the 3D printer." >>> >>> "Oh, cool, yeah I like your CAD diagram, I think it'll work, so go ahead >>> and print one for me..." >>> >>> Here's another potential topic: >>> >>> Chastity belts for men in cultures that oppress women (for example by >>> making women wear oppressive shapeless garments from head to toe, that >>> barely leave enough of an opening for their eyes to see the world). >>> >>> Even one decent prototype would stir up a bunch of publicity about the >>> subject, and hopefully generate some embarrassment on the part of men whose >>> answer to their own weaknesses is to oppress women. "Stop the problem at >>> its source: the dirty minds of men!" >>> >>> OK, enough for one night;-) >>> >>> -G. >>> >>> >>> ===== >>> >>> >>> On 13-04-04-Thu 12:18 AM, Vicky Knox wrote: >>> >>> Tonight during the general meeting I proposed the Today I Learned event >>> "Hacking Sexual Health". I'd like to open up the floor to multiple >>> facilitators interested in this topic area to help me lead either one TIL >>> workshop, or a series of workshops if there is sufficient excitement. >>> Hacking Sexual Health is intended for sexual and asexual people alike. >>> >>> So what does it mean to hack sexual health? Ruminate on it. :] >>> >>> My personal interest is hacking menstruation. I'd like to lead a >>> workshop for creating cloth pads out of recycled clothing. The workshop is >>> intended both for people who menstruate and for people who have friends who >>> menstruate (and want to make them lovely presents!). We will go over >>> different lady product options and have fun cost-comparisons for different >>> products and unproducts. >>> >>> I will be reserving either April 27th or May 4th upon consulting my >>> secretary. :P >>> >>> Please contact me if you are interested in developing your own workshop >>> or helping me to facilitate menstruation hacking! >>> >>> ykciV >>> >>> PS: Clothing hackers, you know who you are! >>> >>> >>> _______________________________________________ >>> sudo-discuss mailing listsudo-discuss@lists.sudoroom.orghttp://lists.sudoroom.org/listinfo/sudo-discuss >>> >>> >>> >> >> _______________________________________________ >> sudo-discuss mailing list >> sudo-discuss(a)lists.sudoroom.org >> http://lists.sudoroom.org/listinfo/sudo-discuss >> >> >

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about the future (Alan Kay)

by J Clark

Wondered if some sudoers might be interested in this video, with awesome-smart guy Alan Kay and Vishal Sikka of SAP, hosted by futurist guy Paul Saffo. 3.26.13 Technology and Transformation: Vishal Sikka and Alan Kay in Conversation with Paul Saffo http://www.youtube.com/watch?v=IPsZyfGCaKs Ah, tropes, memes, symbols, and change. hurrah! Also on the Alan Kay theme, a written interview: An Interview with Computing Pioneer Alan Kay By David Greelish April 02 2013 <http://techland.time.com/2013/04/02/an-interview-with-computing-pioneer-ala…> Born in 1940, computer scientist Alan Curtis Kay is one of a handful of visionaries most responsible for the concepts which have propelled personal computing forward over the past thirty years — and surely the most quotable one. He’s the man who said that “The best way to predict the future is to invent it” and that “Technology is anything that wasn’t around when you were born” and that “If you don’t fail at least 90 percent of the time, you’re not aiming high enough.” And when I first saw Microsoft‘s Surface tablet last June, a Kay maxim helped me understand it: “People who are really serious about software should make their own hardware.” Above all, however, Kay is known for the Dynabook — his decades-old vision of a portable suite of hardware, software, programming tools and services which would add up to the ultimate creative environment for kids of all ages. Every modern portable computer reflects elements of the Dynabook concept — the One Laptop Per Child project’s XO above all others — and yet none of them have fully realized the concept which Kay was writing about in the early 1970s. Actually, Kay says that some gadgets with superficial Dynabook-like qualities, such as the iPad, have not only failed to realize the Dynabook dream, but have in some senses betrayed it. That’s one of the points he makes in this interview, conducted by computer historian David Greelish, proprietor of the Classic Computing Blog and organizer of this month’s Vintage Computer Festival Southeast in Atlanta. (The Festival will feature a pop-up Apple museum featuring Xerox’s groundbreaking Alto workstation, which Kay worked on, as well as devices which deeply reflected his influence, including the Lisa, the original Macintosh and the Newton.) Kay and Greelish also discuss Kay’s experiences at some of the big outfits where he’s worked, including Xerox’s fabled PARC labs, Apple, Disney and HP. Today, Kay continues his research about children and technology at his own organization, the Viewpoints Research Institute. –Harry McCracken David Greelish: Do you agree that we now essentially have the Dynabook, as expressed in the three tiers of modern personal computing; the notebook, tablet and smartphone? If not, what critical features do you see missing from these? Have they delivered on the promise of improving education? Alan Kay: I have been asked versions of this question for the last twenty years or so. Ninety-five percent of the Dynabook idea was a “service conception,” and five percent had to do with physical forms, of which only one — the slim notebook — is generally in the public view. (The other two were an extrapolated version of Ivan Sutherland’s head mounted display, and an extrapolated version of Nicholas Negroponte’s ideas about ubiquitous computers embedded and networked everywhere.) [snip]

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Help with dinner tonight? (WAS: Food and the absence therein)

by Yardena Cohen

On Wed, Apr 3, 2013 at 3:19 PM, Raymond Lai <raymond.wm.lai(a)gmail.com> wrote: > My fellow Sudoers, I am not feeling well and will not be able to make the > meeting tonight. I wish I could say there are leftovers in the fridge. :( Thanks so much for all your work Ray! If anybody else would like to collaborate on food tonight, I'd love to help! I can contribute time, car, buying ingredients, chopping skills, and following directions, in exchange for your contribution of leadership. :) :) :)

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Food and the absence therein

by Raymond Lai

My fellow Sudoers, I am not feeling well and will not be able to make the meeting tonight. I wish I could say there are leftovers in the fridge. :( Cheers, ray

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Fwd: [Sudo-radio] current set up of SUDORADIO

by Marina Kukso

hi everyone, in light of this saturday's audio production workshop, we wanted to share with everyone the current state of the radio, which is basically ready to use! you can listen to mostly silence at the moment at radio.sudoroom.org (HIT THE GREEN BUTTON). i'd be happy to show anyone who's interested how to use the dj software in there, just ask me anytime. i'll also be available before or after this saturday's workshop if people want to learn then. - marina Forwarded conversation Subject: current set up ------------------------ From: *Marina Kukso* <marina.kukso(a)gmail.com> Date: Tue, Apr 2, 2013 at 11:28 PM To: "sudo-radio(a)lists.sudoroom.org" <sudo-radio(a)lists.sudoroom.org> hi everyone, naomi, mark, and i worked on a couple items this evening. the current set up is as follows: 1. there is now a physical mixer that allows you to switch between two channels (so you can switch between 2 different songs, just like turntables :P). [image: Inline image 1] 2. there are 4 lines in in total. (this means we can potentially switch between 4 different sources, like a turntable with 4 RECORDS.) 3. 2 of the lines are currently connected 4. one of the lines goes to the computer set up in there (which means you can play music from the computer) 5. the other line goes to an unhooked mini jack that one can use to play from one's portable music device of choice! [image: Inline image 2] 6. the mixer runs to naomi's rpi which is streaming to her stream, currently accessible at radio.sudoroom.org. 7. the computer still works as it used to - the mic is connected to the computer and you can use mixxx to queue songs and speak on the mic. (the physical mixer also has a separate mic input, so there's that!) audacity is also on that computer, allowing one to record audio. addenda 1. the beast (aka "tiny") is no longer connected :( which means no more tapes :( BUT we can easily reconnect him as there are still 2 empty inputs on the mixer. the only reason we disconnected him was because it was returning crappy sound. [image: Inline image 3] 2. every time we listen to tapes in there, i get this song stuck in my head for the rest of the day: http://hypem.com/track/1e7xa/Blouse+-+Videotapes 3. here's what the room looks like! [image: Inline image 4][image: Inline image 5] so pretty! wow! :D ---------- From: *Naomi Most* <pnaomi(a)gmail.com> Date: Wed, Apr 3, 2013 at 12:11 AM To: Marina Kukso <marina.kukso(a)gmail.com> Cc: "sudo-radio(a)lists.sudoroom.org" <sudo-radio(a)lists.sudoroom.org> It must be noted, Rusty slid in at about 10:15 -- technically AFTER the meeting ended! -- and tried to get the cassette deck going again. Alas (TL;DR) to no avail. The Tape output of Tiny the Behemoth Mixer comes in all distorted on the little radio mixer (something about impedance). We must have spent 20 minutes on every-which-way combinations, and all we got was something that sounded like a live radio feed from an 80s dance party... ...which of course Rusty was totally into, so I think it's still hooked up. But please, don't use this... much.... also, I "installed" that laptop I brought so that people can play with liquidsoap. It's at 192.168.1.246 Anybody can have an account, just ask. --Naomi _______________________________________________ > Sudo-radio mailing list > Sudo-radio(a)lists.sudoroom.org > http://lists.sudoroom.org/listinfo/sudo-radio > >

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Fwd: for the purposes of this union, we're freelancers

by Marina Kukso

hi everyone, you may find the below event interesting. - marina ---------- Forwarded message ---------- From: Shani Aviram <shaniaviram(a)gmail.com> Date: Wed, Apr 3, 2013 at 10:24 AM Subject: Fwd: for the purposes of this union, we're freelancers To: Marina Kukso <marina.kukso(a)gmail.com> ---------- Forwarded message ---------- From: Lilah Crews-Pless <lcrewspless(a)gmail.com> Date: 2013/4/3 Subject: Fwd: for the purposes of this union, we're freelancers To: Kathryn Jackson <quite_the_contrary(a)yahoo.com>, Kyla Kelley < kylamoe(a)gmail.com>, sarah kersten <sarah.kersten(a)gmail.com>, Jesse Lefkowitz <Jesse.lefkowitz(a)gmail.com>, Shani Aviram <shaniaviram(a)gmail.com>, rIsrael74(a)gmail.com Wanna go with? My Friend Sonja invited me. She says: "As of now, the Freelancers Union can do nothing for us, because it is a New York organization. In NYC they mostly benefit members by providing a place to buy healthcare, and they run a health clinic, but they also sometimes lobby to change local laws that harm independent contractors. HOWEVER, it seems kind of crazy that there wouldn't/ couldn't be a branch in the Bay Area, which I guess is why the founder is coming to town. I like the idea of this union, their logo is pretty - I admire the founder, I'm going to this. u r invited." http://sanfranfreelancersdinner.eventbrite.com/ -- Shani Aviram Composer and Radio Producer 650-440-3700

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Fwd: This Thursday: David Graeber @ CIIS

by mattsenate＠gmail.com

// Matt ----- Forwarded message ----- From: "Shawn" <imagineaworld(a)gmail.com> To: "Matthew Senate" <mattsenate(a)gmail.com>, "Kevin DeWar" <kevin.dewar(a)gmail.com> Subject: This Thursday: David Graeber @ CIIS Date: Mon, Apr 1, 2013 10:55 PM Hey Matt and Kevin! Here's the most recent version of the announcement about Thursday. cheers =) --Shawn Finance is the art of passing money from hand to hand until it finally disappears. --Robert W. Sarnoff ----- Forwarded Message ----- From: Andrej Grubacic <agrubacic(a)ciis.edu> To: ANDREJ GRUBACIC <agrubacic(a)ciis.edu> Sent: Monday, April 1, 2013 2:08 PM Subject: This Thursday: David Graeber @ CIIS * * * * Austerity and its Discontents A Public Forum with David Graeber 7:00 PM Thursday April 4 Namaste Hall, CIIS 1453 Mission St. San Francisco Free and open to the public David Graeber is an anthropologist operating out of Goldsmiths, University of London. He emerged as the organic intellectual of the Occupy movement, and has made important contributions to the renovation of antinomian thought. Among his books are Fragments of an Anarchist Anthropology, and Debt: The First 5000 Years. Join us for a book launch of his new book, The Democracy Project. http://www.ciis.edu/Campus_Calendar/Austerity_and_its_Discontents_A_Public_… https://www.facebook.com/events/327639810672338/ * * * * International Roma Day Celebration with Voice of Roma! Tuesday, April 2nd 7-9pm Room 607 "Art, activism & politics of stereotypes: a "Gypsy Show'" with Sani Rifati Please join us for a talk that will focus on Roma history, music, and culture. Despite the recent attention, or even hype, surrounding the cultural production of the "Gypsies," vast majority of Roma artists can barely make a living, let alone enter the world music stage. Brands that we usually associate with this culture, "Gypsy Caravan" and "Gypsy Spirit", are more often then not far removed from the actual existing Roma culture and contexts of racist violence unfolding in Europe. Come and celebrate International Roma Day, in solidarity with Romani struggles for dignity and internationalism. ****************************************************** Anthro & Social Change Department sends out occasional messages regarding our public events. Please let us know if you do not wish to receive such announcements. *****************************************************

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May 1st - Dance + LED performance at Bekreley Museum

by Romy Ilano

https://sudoroom.org/wiki/page/DanceSound Hey Sudoers *May 1st the choreographer/dancer teacher from the public school is having a performance at the Berkeley Museum of Art.* * * *Anyone interested???* - She is open to lights. Rachel would you be interested in showcasing your wearable electronics? We have to wear all white. - I would love to see Rochambeau do something creative and weird with video and music. - Anyone interested in doing lighting? How can sudo room people do things creatively that go outside of what is expected for such a performance? *For me, I'm focused more on the creativity of the members of sudo room. Showcasing private companies' work if they are not members of sudo room is less appealing than showcasing the work of a sudo room person.* Note also that this is the choregorapher's perforamnce. She is doing something with sound involving tonality rubbing a big metal bowl with a finger... Best, Romy

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Kickstarter for Patrick's Collaborative Art/Hackerspace in Berkeley!

by Marina Kukso

hi everyone, a few of us recently attended the launch and opening for sudoer patrick schmidt's brand new & awesome collaborative art/hackerspace in berkeley! ( http://hackthegallery.net/) he is now running a kickstarter to support the space: http://www.kickstarter.com/projects/1728264969/how-to-make-your-dreams-come… please support this new space if you can - it is a fantastic space and patrick was directly inspired to open it by his experiences at sudo room! - marina

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Sudo Room is Open + New Sudo Room Title: Keymaster

by Andrew

Hi All, Sudo Room is open. I'll be here until someone joins me to hold open the fort. Also I'd like to propose (and immediately implement) the title of "Keymaster": *A "Keymaster" at Sudo Room is dedicated to the open and public access of Sudo Room. A Keymaster will make it their mission to understand, maintain and utilize the tools needed to open Sudo Room and keep it open for members and soon to be members. A Keymaster will distribute access in accordance with the values of Sudo Room.* I would like to anoint my self a Keymaster. If you'd like to get in to the space and you don't know how, come see me. or call/text me 831-332-2507 . I am one human solution to the technical issue of access to Sudo Room. PS. I tested RFID and Sudo Door wifi, both are working. --Andrew -- ------- Andrew Lowe Cell: 831-332-2507 http://roshambomedia.com

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Homeric epic hymn to sudo room

by Romy Ilano

We must now start penning our epic hymn The ode to sudo room and the brave battles The soldering soul jahs who strove to striate The block functions and doors of dongles .. ;) Anthony made me laugh! Happy Tuesday! --- Romy Ilano Founder of Snowyla http://www.snowyla.com romy(a)snowyla.com

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Re: [sudo-discuss] Birds trapped in sudoroom

by Yardena Cohen

The birds are now "safely" outside. I cleared a very obvious path to the window and Matt laid bread crumbs on the floor. Then we closed all the doors and left them alone for a while. When I came back in, they were already close to the window, and I saw them fly out. I think they were fleeing from me. Good luck, little birds!

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ladies of sudo at a women in tech event for a cool danish company that's into communal DIY?

by Romy Ilano

Hey ladies, Someone slap my wrist if this is too commercial-(i'm sure i'll get spanked)-but I'd love to have any technical women who code and hack stuff like Jordan or Vicki (google glasses) meister be my dates for a Women in Tech event held by a Danish b2b company Tradeshift. They're all into hackerspaces and communes. Their CEO was all over the Danish BBS scene and is a hacker himself! This is this Wednesday evening -- if you code and are into international networks, it would be so interested. My selfish motivation is that I'd just love to see more women who actually code and aren't afraid to get their hands dirty with embedded systems at these internatinoal events, not just marketing babes who look sexy in heels. Best, Romy

12 years, 5 months

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posting to sudo-announce

by Matthew Senate

Hey all, I've set full moderation on sudo-announce, so if you'd like to post, please say so on sudo-discuss first, then a moderator can approve your message to sudo announce. This way we won't have accidental multi-message threads spamming the announce list. Over time, we'll grow the number of moderators, and ensure we send Announce messages only when we mean to--and not accidentally. Read more about this practice here: http://wiki.list.org/pages/viewpage.action?pageId=4030685 // Matt

12 years, 5 months

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Sudoroom welcomes Noisebridge to their new Oakland location!

by Yardena Cohen

Sudoroom would like to formally welcome Noisebridge to their new location in downtown Oakland, across the hall from Sudoroom! We think it was a wise choice to save on rent by moving to the east bay, and look forward to exciting future hacker collaboration. As you might know, Noisebridge has struggled with rising rents, at the same time that Sudoroom's landlord has struggled to find tenants. This was the perfect fit! Noisebridge is still only 1.5 blocks from BART, just as it was in San Francisco, so the extra commute should not be much trouble for anyone. https://sudoroom.org/sudobridge-a-financial-imperative/ https://sudoroom.org/wiki/page/Noisebridge

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The [physical] finance dropbox...

by Tommy York

Is complete - ish. I'd love some sudoroom stickers /other recommended decoration. On a practical level, the whole transparency thing is difficult to see against a white wall. Maybe I'll create some kind of LED solution above it. ----------------- Thomas Riley York (杨德民) 510.926.0510 http://www.linkedin.com/in/tommyyork

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Birds trapped in sudoroom

by rusty lindgren

OMFG, Birds are in Sudo... 2 little ones, and they are trying to escape through the skylight. Can anyone help me get these birds out???? I'm trying to work, and can't really deal with this right now. -- Cheers, Rusty Lindgren **

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Fwd: 4/2013 Statement, 2141 Broadway

by Matthew Senate

---------- Forwarded message ---------- From: Laurie Cooperman Rosen <Lscoop(a)comcast.net> Date: Sun, Mar 31, 2013 at 1:53 PM Subject: 4/2013 Statement, 2141 Broadway To: exchequer(a)sudoroom.org Cc: eddan(a)eddan.com, mattsenate(a)gmail.com Hi All- Here's the 4/2013 Statement for The Sudo Room. Utilities were the lowest I've ever seen them this month. Congrats! Thank you! Laurie & George

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Wifi door access and label printing working again

by Marc Juul

Hi sudoers! = wifi door access = Yardena recently fixed one of the issues with the door access (ram usage), and I just fixed the issue related to the wifi door access sometimes failing. If the web page doesn't come up automatically when you connect to the sudodoor access point, then go to your web browser and try to load any HTTP web site. If you try to load an HTTPS website, then it won't work. = label printer = The label printer has been re-loaded with new paper (thanks to tunabananas for buying!) and the software has been configured to hopefully be more stable and automatically start if the computer is rebooted. -- Marc Juul

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Fwd: Re: robotics: 2-axis pointing

by hol＠gaskill.com

didn't get much of a rise out of sudo-doscuss... steve i have a 2-axis compass chip that is earmarked for rover use. excellent point about the cloudy day problem - i gave derek my paired arduino/processing utility for passing servo instructions from PC to microcontroller and my understanding is that he is going to port the PC side to python using the GPIO pins of a raspberry pi for serial connection with arduino to do the low-level actuation since it runs at 5V like servos and some ICs, with the end goal of pointing a webcam. I will take a look at your code when i get back to town and try to find a schematic for driving those HVAC servos. we can fabricate whatever mount we need, but for starters it looks like we could get away with some 1/2" or 5/8" square tube through the servo, with holes drilled for attaching plywood to which we could duct tape some small panels (i have 2 5-watt car charging panels for testing purposes). any interest in sensing the battery voltage and having the computer enter sleep mode during the night? Not sure how to do that on the rpi but there's some documentation for the arduino. The whole rpi could be turned off and on with a single power transistor, as could individual transmitters ------------Forwarded message------------ From: steveberl(a)gmail.com Date: Mar 31, 2013 09:29:23 AM Subject: Re: robotics: 2-axis pointing To: hol(a)gaskill.com Cc: patrikd(a)gmail.com, sudo-doscuss(a)lists.sudoroom.org On Sun, Mar 31, 2013 at 9:07 AM, Steve Berl steveberl(a)gmail.com> wrote: I've already got the "calculating the daytime paths" part. I have python code using pyephem that given a latitude, longitude, and time, gives back the altitude and azimuth of the sun. For a fixed platform, that you can align once, that should be all you need. For a portable or moving, rotating platform, you need a way to know the orientation of the platform, which might be a magentometer, or even better, a 9DOF IMU like https://www.sparkfun.com/products/11486 Dithering around the sun would probably be OK for solar panels, but on cloudy days, it might spend a lot of time hunting for a peak that doesn't exist. For radio astronomy, it would add noise to the system which you would need to figure out how to filter out somehow. -steve On Sat, Mar 30, 2013 at 9:13 PM, hol(a)gaskill.com> wrote: +1 on using a geared DC motor with encoder. we will basically wind up with a custom servo. i have some IR sensors that i got with the intention of making a photo interrupt type encoder - just need to print some dartboard-esqe patterns on transparency sheet and center it on the shaft or a coupler. steve i am very interested in building a sun-tracking mount for solar panels and those servos we have at sudo room would work for that application...i think there are also a few boxes that have geared stepper motors too, from the same batch of parts which i think was an overflow from AMT. two main options fro pointing as i see it are calculating the daytime paths geometrically, or using closed loop control to dither the panels around the sun like the thermopile on a sidewinder missile. also would be interested in one where the yaw axis of the panels is actuated by virtue of being mounted on a rover chassis (roomba???) with 2-axis magnetometer as feedback on pointing. Mar 29, 2013 04:44:09 PM, patrikd(a)gmail.com wrote: If you want something precise and slow, you probably want to go with a >high gear ratio and a stepper motor. The load on this system should be >fairly uniform (unless you accidentally start yanking on it, of >course), so if it's well designed you shouldn't see too much trouble >with steps getting skipped. You could always zero out the positioning >using endstops. > >A good alternative would be to use a DC motor with an optical encoder. >If you use a worm gear with a 360:1 gear reduction, and you attach a >black/white crosshatch on the fast moving worm, you can measure the >position of the slow moving worm wheel to within 1/4 of a degree, >which is plenty for your purpose. > >Patrik > >On Fri, Mar 29, 2013 at 3:53 PM, Steve Berl steveberl(a)gmail.com> wrote: >> Just to clarify MY requirements a bit, the DirecTV radio telescope >> (http://www.gb.nrao.edu/epo/ambassadors/ibtmanualshort.pdf) has a beamwidth >> of about 3-5 degrees, so getting to within 1 degree would be great. I have >> thought that the pan/tilt mounts used for larger traffic and surveillance >> cameras would be perfect for this. >> It also doesn't need to be fast. The first application is tracking the sun. >> It needs to move at about 15 degrees/hour during the day. Overnight it has >> to be able to swing back from the sunset position to the sunrise position, >> but it's got all night to get there. Of course later on, or at night, we >> might want to look at other things, and move from one celestial object to >> another much more quickly. >> >> Optical telescopes (and big radio telescopes) generally have much smaller >> beamwidths/field of view, so pointing accuracy and smooth motion (to track >> the apparent move across the sky for long exposure photography,etc) are >> critical. For more info on telescope drive mechanisms check out >> http://www.dfmengineering.com/news_telescope_gearing.html. Theres a lot of >> good info there about precise pointing control of big heavy things. These >> are the guys who made the control system for Nellie, the 36" reflector >> telescope at Chabot Space & Science Center (www.chabotspace.org). >> >> -steve >> >> >> >> On Fri, Mar 29, 2013 at 3:13 PM, Scott Garrison >> scottrobertgarrison(a)gmail.com> wrote: >>> >>> I'd have to disagree on this one. Servos have an encoder that allows the >>> motor to know it's exact position. Stepper motors will miss steps and won't >>> be able to catch itself. I guess this is an accuracy vs precision argument >>> as at least the stepper motor is stable in it's adjusted position. >>> >>> If you are getting oscillations or wobbles in your position with a servo >>> then most of the time you are sending it a corrupted signal. This happens >>> with microcontroller code whose servo libraries are not interrupt driven as >>> the PWM signal gets corrupted by other processes. Or with unshielded cables >>> that are experiencing crosstalk from other wiring. >>> >>> As with all things the hardware has to be matched with the job though. If >>> your servo gears have lots of slop or aren't up to the job of positioning >>> something heavy they will struggle. It's possible to use a potentiometer as >>> a secondary encoder of position to help if your gearing is introducing extra >>> error. >>> >>> -=[Scott]=- >>> >>> >>> On Fri, Mar 29, 2013 at 2:37 PM, David Rorex drorex(a)gmail.com> wrote: >>>> >>>> If you want ultra precise control, you need stepper motors. Or maybe >>>> really expensive servos would work, but the cheap servo's I've used are only >>>> accurate to a couple degrees and can wobble a little. >>>> >>>> >>>> On Thu, Mar 28, 2013 at 3:13 PM, Scott Garrison >>>> scottrobertgarrison(a)gmail.com> wrote: >>>>> >>>>> I'd be interested in doing something similar for controlling a camera. >>>>> I also have an extra house satellite dish that I would love to put to use. >>>>> I have experience controlling servos with microcontrollers. >>>>> >>>>> -Scott >>>>> >>>>> >>>>> On Wed, Mar 27, 2013 at 3:07 PM, Steve Berl steveberl(a)gmail.com> wrote: >>>>>> >>>>>> I notice on the etherpad that someone is interested in a 2 axis control >>>>>> for a radio dish. I'm interested in that also. In particular I want to mount >>>>>> a house satellite TV dish sized antenna on a 2 axis mount for radio >>>>>> astronomy use. It requires smooth and precise, but slow movement. >>>>>> >>>>>> Who is it that is interested in this project? Can you get in contact >>>>>> with me? >>>>>> >>>>>> -steve >>>>>> >>>>>> >>>>>> On Sun, Mar 24, 2013 at 5:43 PM, hol(a)gaskill.com> wrote: >>>>>>> >>>>>>> Howdy folks, >>>>>>> >>>>>>> We are two days away from the beginning of the second microcontroller >>>>>>> project hacking night at sudo room. As someone suggested, I created a >>>>>>> facebookpage for the event. Please invite people you think might be >>>>>>> interested! I previously ordered 10 ATMega328p chips and crystals, and will >>>>>>> have them available at cost ($5) for those just starting out who want a >>>>>>> basic controller. >>>>>>> >>>>>>> Event Link: >>>>>>> https://www.facebook.com/events/502675869769339/ >>>>>>> >>>>>>> Also, there is an etherpad to jot down projects you intend to work on >>>>>>> in case anyone out there is interested in collaborating: >>>>>>> https://pad.riseup.net/p/microbotics >>>>>>> This will be an ongoing document, and is intended to provide a >>>>>>> subsystem-level view of project elements in order to encourage people to >>>>>>> join together to work on individual elements or principles where interests >>>>>>> overlap in a way that permits a limited scope of collaboration, without >>>>>>> having to commit to recurring work on an entire project. >>>>>>> >>>>>>> We had some interesting projects last time and I expect even more this >>>>>>> time, hopefully with a few people from the last event returning to show what >>>>>>> they've done with their projects since then. Personally I will try to go >>>>>>> back and forth between 50% working on 2-3 projects, 30% getting newbies >>>>>>> started on their controller builds, and 20% snacking/shooting the shit. >>>>>>> Looking forward to seeing y'all! >>>>>>> >>>>>>> Cheers, >>>>>>> Hol >>>>>>> _______________________________________________ >>>>>>> sudo-announce mailing list >>>>>>> sudo-announce(a)lists.sudoroom.org >>>>>>> http://lists.sudoroom.org/listinfo/sudo-announce >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> -steve >>>>>> >>>>>> _______________________________________________ >>>>>> sudo-announce mailing list >>>>>> sudo-announce(a)lists.sudoroom.org >>>>>> http://lists.sudoroom.org/listinfo/sudo-announce >>>>>> >>>>> >>>>> >>>>> _______________________________________________ >>>>> sudo-announce mailing list >>>>> sudo-announce(a)lists.sudoroom.org >>>>> http://lists.sudoroom.org/listinfo/sudo-announce >>>>> >>>> >>> >> >> >> >> -- >> -steve >> >> _______________________________________________ >> sudo-announce mailing list >> sudo-announce(a)lists.sudoroom.org >> http://lists.sudoroom.org/listinfo/sudo-announce >> >_______________________________________________ >sudo-announce mailing list >sudo-announce(a)lists.sudoroom.org >http://lists.sudoroom.org/listinfo/sudo-announce > -- -steve -- -steve

12 years, 5 months

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Sudo is at Noisebridge!

by Vicky Knox

Come out and see the illustrious Ray as he ensnares the crowd in his espresso and edible gold flake cotton candy! Join Yardena and I at the Sudo Room table and see what goodies we have both brought and created to lure future members in our direction.... 16th St Mission BART. Noisebridge is on Mission, between 17th and 18th street.

12 years, 5 months

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artists?

by Lit JC

Sudoers, Are there any of you who consider yourself an artist of a high-tech variety? I'm not exactly sure what that means, open to interpretation and learning. Thanks, j.

12 years, 5 months

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rps has math nerd zines -- should sudo room make one too?

by Romy Ilano

maybe you can silkscreen the math nerd zine using the rps collective silkscreen printer? here's a photo of the math nerd zine i took a few years ago http://www.flickr.com/photos/35468138525@N01/3499107666 [image: Inline image 1]

12 years, 5 months

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does anyone hack a native mobile OS that isn't android or iOS or html5?

by Romy Ilano

I saw some guy show me the linux/maemo(?) OS that flamed out and died that Nokia uses. It looks nice though.

12 years, 5 months

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Sudo Room at Noisebridge TOMORROW

by Vicky Knox

Hellooooooo! Sudo Room has been offered a table at tomorrow's 4-11p fundraiser upon which we may spew out upon the world our creative pursuits. (In other words, there will be a Sudo Booth!) \-\-\-\-\-Would you like to bring your project or have it represented?-/-/-/-/-/ I'm going to be arriving a little early. Please let me know if you'd like to join me or have me set something up for you early-on or be your representative. I will be stopping by Sudo Room beforehand. Maybe like..noon-thirtyish? PS: I neeeeed stickers. Who has 'em?

12 years, 5 months

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